"Without such collaborative projects to work on, I think it would have been quite difficult to proceed to the next step of developing an on-going research program," he says.
He said that made it too difficult to proceed with the election as planned.
The latest U.S. congressional sanctions and the post-Crimea international sanctions regime lock into place a whole set of restrictions on relations with the country, making it difficult to proceed on other fronts.
13 Endovascular interventions should be preferred for the elderly, high-risk patients, but in practice we often encountered situations in which it was difficult to proceed with angioplasty solely because of simultaneous calcifications and stenosis of the multilevel arteries.
But, he added, that, "without the state financing to kick-start the process, it would have been much more difficult" to proceed because lenders were reluctant to enter an untested market.
According to those rules, prosecutors would find it more difficult to proceed against McDonnell after Labor Day, given that Virginians will go to the polls Nov. 5 to choose his successor.
But it turned out to be difficult to proceed from there.
It would have been difficult to proceed without Qatar's assent.
"Very frankly, my view is that with regards to reconciliation," Leon E. Panetta, director of the Central Intelligence Agency, said over the weekend, referring to the Taliban, "unless they're convinced that the United States is going to win and that they're going to be defeated, I think it's very difficult to proceed with a reconciliation that's going to be meaningful".
"We've seen no evidence of that and very frankly, my view is that with regards to reconciliation, unless they're convinced that the United States is going to win and that they're going to be defeated, I think it's very difficult to proceed with a reconciliation that's going to be meaningful," he said.
